Walt: A blowfish. Think about it. Small in stature, not swift, not cunning. Easy prey for predators. But the blowfish has a secret weapon, doesn’t he? What does the blowfish do, Jesse? What does the blowfish do?

Jesse: I don’t know…

Walt: The blowfish puffs up. The blowfish puffs himself up four or five times larger than normal. And why? Why does he do that? So that it makes him intimidating, that’s why. Intimidating, so that the other scarier fish are scared off. And that’s you. You are a blowfish. You see? It’s just all an illusion. See? It’s nothing but air.
Now, who messes with the blowfish, Jesse?